Orphan date December 2010 refimprove date December 2010 chembox verifiedrevid 400638121 ImageFile Cyanoketone.png ImageSize 200px IUPACName 2 S ,8 R ,9 S ,10 R ,13 S ,14 S ,17 S 17 hydroxy 4,4,10,13,17 pentamethyl 3 oxo 1,2,7,8,9,11,12,14,15,16 decahydrocyclopenta a phenanthrene 2 carbonitrile OtherNames Section1 Chembox Identifiers CASNo 4248 66 2 PubChem 20243 SMILES C C 12CC C H 3 C H C H 1CC C 2 C O CC C4 C 3 C C H C O C4 C C C N C Section2 Chembox Properties Formula C sub 23 sub H sub 33 sub NO sub 2 sub MolarMass 355.51 g mol Appearance Density MeltingPt BoilingPt Solubility Section3 Chembox Hazards MainHazards FlashPt Autoignition Cyanoketone is an androstenol . It has been shown to inhibit steroidogenesis . ref cite pmid 4266510 ref It inhibits atrophy of apical dendrite s. citation needed date December 2010 References Reflist Androgenics Estrogenics Progestogenics Category Steroids Category Nitriles steroid stub fa ... more details
Unreferenced date December 2006 orphan date November 2009 In topology , a hereditarily unicoherent , Connected space Path connectedness arcwise connected continuum topology continuum is called a dendroid. A continuum X is called hereditarily unicoherent if every subcontinuum of X is unicoherent . A locally connected dendroid is called a dendrite mathematics dendrite . DEFAULTSORT Dendroid Topology Category Continuum theory Topology stub ... more details
Image Golgi Hippocampus.jpg right thumb Drawing by Camillo Golgi of a hippocampus stained with the silver nitrate method Image Purkinje cell by Cajal.png thumb Drawing of a Purkinje cell in the cerebellum Cerebellar cortex cortex done by Santiago Ram n y Cajal, clearly demonstrating the power of Golgi s staining method to reveal fine detail Image GolgiStainedPyramidalCell.jpg thumb A human neocortical pyramidal neuron stained via Golgi technique. Notice the apical dendrite extending vertically above the soma and the numerous basal dendrites radiating laterally from the base of the cell body. Golgi s method is a nervous tissue staining technique discovered by Italy Italian physician and scientist Camillo Golgi 1843 1926 in 1873. It was initially named the black reaction la reazione nera by Golgi, but it became better known as the Golgi stain or later, Golgi method. Golgi staining was famously used by Spain Spanish neuroanatomist Santiago Ram n y Cajal 1852 1934 to discover a number of novel facts about the organization of the nervous system, inspiring the birth of the neuron doctrine . Ultimately, Ramon y Cajal improved the technique by using a method he termed double impregnation. Ramon y Cajal s staining technique, still in use, is called Cajal s Stain. Mechanism The cells in nervous tissue are densely packed and little information on their structures and interconnections can be obtained if all the cells are stained. Furthermore, the thin filamentary extensions of neural cells, including the axon and the dendrite s of neurons, are too slender and transparent to be seen with normal staining techniques. Golgi s method stains a limited number of cells at random in their entirety. The mechanism by which this happens is still largely unknown. ref cite book last Nicholls first J. G. title From neuron to brain year 2001 publisher Sinauer Associates isbn 0878934391 ISSN pages 5 ref Dendrites, as well as the cell soma, are clearly stained in brown and black and can be follo ... more details
Amphids Greek language Greek amphi , around, double are innervated invaginations of cuticle in nematode s. They are usually found in the anterior head region of the animal, at the base of the lips. Amphids are the principal chemosensory organs of nematodes. Each amphid is made up of 12 sensory neuron s with ciliated dendrite s. Category Nematodes nematode stub et Amfiid ... more details
other voltage gated sodium channels transmitting a current along the dendrite. Dendritic spikes ... may differ in distribution between the soma and dendrite within the same neuron. There seems ..., calcium currents are not uniformly distributed along a dendrite. ref name Gauck 2001 Gauck V ... in the opposite direction, invade the soma, and then travel down the dendrite as a dendritic ... at the dendrite if stimulated by a strong synaptic input. Strong, synchronous synaptic inputs .... Neuron 21 1189 1200 ref The ability of a dendrite to initiate an action potential is not only ... inputs the perforant path PP through the apical dendritic tuft 500 750 m from soma and the Schaffer collateral SC through the basal and apical dendrites 250 500 m from soma . ref name Jarsky 2005 Studies ... primary dendrite. Journal of Neurophysiology 88 2755 2764 ref For example, Mitral cells seem to serve ... thumb 300x193px right Schematic of a chemical synapse between an axon of one neuron and a dendrite ... more details
For geological coring core sample Coring happens when a heated alloy, such as a Cupronickel Cu Ni system, cools in non equilibrium conditions. This causes the exterior of the material to harden faster than the interior. Coring causes the centers of the grains to retain more of the higher melting temperature element. In this case, the dendrite crystal dendrite arms formed from the exterior have a different composition than the alloy in the inner regions, resulting in a local compositional difference. References Beddoes, J. and Bibby, M.J. Principles of Metal Manufacturing Processes . Elsevier Butterworth Heinemann, 1999. ISBN 0 340 73162 1 Category Metallurgy Industry stub nl Boorkern ... more details
A germ pore is a small pore in the outer wall of a fungal spore through which the germ tube exits upon germination. It can be wikt apical apical or eccentric in its location, and, on light microscopy , may be visualized as a lighter coloured area on the cell wall. Apical germ pore is a term applied to mushroom spores which have a pore at one end. Some spores have a hole in the cell wall where the first strand of germinating mycelium emerges. If the cell wall is divided from one end to the other, this is called a germ slit . Commonly the germ pore is at one end of the mushroom spore and is called an apical pore . Mushroom genera with apical germ pores include Agrocybe , Panaeolus , Psilocybe , and Pholiota . See also Portal Fungi mycelium spore External links http www.mushroomthejournal.com greatlakesdata Terms germp704.html IMA Mycological Glossary Germ pore DEFAULTSORT Germ Pore Category Fungal morphology and anatomy Fungus stub ... more details
Action potential Acetylcholine Acetylcholinesterase Aging and memory Albert Einstein s brain Brain Central nervous system Central nervous system CNS Dendrite Dopamine Glial cell s Human brain Long term potentiation Nervous system Neurite Neuron Neuroplasticity Neuroscience Neurotransmitter Sensory neuroscience Synapse Synaptic plasticity Category Science related lists Category Indexes of science articles Neurobiology topics ... more details
Merge Transcellular transport Paracellular transport discuss Talk Transcellular Merge discussion date April 2012 Transcellular transport refers to the travel through the cell, passing through both the apical membrane and basolateral membrane. Category Cell anatomy ... more details
on of the attraction of apicaldendrite s of pyramidal cells in Cerebral cortex cortical layer V towards ... Ghosh title Semaphorin 3A is a chemoattractant for cortical apical dendrites journal Nature volume ... the axons of pyramidal cells are repelled by Sema3a, the apical dendrites are attracted to it. The attraction ... in the apical dendrites. SGC generates cGMP, leading to a sequence of chemical activations ... more details
Apex adjectival form apical is an anatomical term for the tip of the mollusc shell of a gastropod , scaphopod , or cephalopod mollusk mollusc . Gastropods The word apex is most often used to mean the tip of the spire mollusc spire of the shell of a gastropod . The apex is the first formed, and therefore the oldest, part of the shell. To be more precise, the apex would usually be where the tip of the Embryo embryonic shell or protoconch is situated, if that is still present in the adult shell often it is lost or eroded away . Coiled gastropod shells The phrase apical whorls , or protoconch , means the whorls that constitute the embryonic shell at the apex of the shell, especially when this is clearly distinguishable from the later whorls of the shell, otherwise known as the teleoconch . Comparison of the apical part and the whole shell of Otukaia kiheiziebisu gallery File Calliostoma kiheiziebisu apex.png File Calliostoma kiheiziebisu shell.png gallery Limpet like gastropod shells The space under the apex of a Patellidae patellate gastropod is called the apical cavity . Scaphopods The apex of Scaphopoda tusk shells is the small, open posterior end, and the opening itself is usually called the apical aperture . Cephalopods In orthocone cephalopods, the pointed end of the shell is called the apex, and shell growth is away from the apex and toward the aperture . The first chamber of the apex is sometimes called the protoconch . Bivalves The apex of a valve of a bivalve is more usually known as the umbo or beak. When the embryonic shell is still present that is known as the prodissoconch . References Category Mollusc anatomy Category Gastropods Gastropod stub ... more details
Unreferenced stub auto yes date December 2009 Image Plant Buds clasification.svg 450px right The axillary bud is an embryonic shoot which lies at the junction of the plant stem stem and Petiole botany petiole of a plant . As the apical meristem grows and forms leaves , a region of meristematic cells are left behind at the node between the stem and the leaf. These axillary buds are usually dormant, inibited by auxin produced by the apical meristem, which is known as apical dominance . If the apical meristem was removed, or has grown a sufficient distance away from an axillary bud, the axillary bud may become activated or more appropriately freed from hormone inhibition . Like the apical meristem, axillary buds can develop into a stem or flower. Certain plant pathology plant diseases notably phytoplasma s can cause the proliferation of axillary buds, and cause plants to become bushy in appearance. Axillary buds can be used to differentiate if the plant is single leafed or multi leafed. Simply count the number of leaves after an axillary bud. If there is only one leaf, then the plant is considered single leafed, vice versa. DEFAULTSORT Axillary Bud Category Plant morphology Botany stub et K lgpung es Yema axilar simple Axillary bud ... more details
Log Method begins by calculating the function Y r N S where N is the number of dendrite crossings ... of the polynomial is calculated and used in place of the Dendrite Maximum. Additionally, the average ... more details
to short central dendrites and a single long apicaldendrite that expands into the granule cell layer and enterss the mitral cell body layer. The dendrite branches terminate within the outer plexiform ... 10.1002 cne.903020203 ref The granule cell has a characteristic cone shaped tree of spiny apical dendrites . The dendrite branches project throughout the entire molecular layer and the furthest tips ... more details
Orphan date January 2011 Context date October 2009 Critical radius is the minimum size that must be formed by atoms or molecules clustering together in a gas, liquid or solid matrix before a new phase inclusion a bubble, a droplet, or a solid particle is stable and begins to grow. Formation of such stable nuclei is called nucleation . In precipitation models this is generally a prelude to models of the growth process itself. Sometimes precipitation is rate limited by the nucleation process. This happens for example before one takes a cup of superheated water from a microwave and, when jiggling it against dust particles on the wall of the cup, enables heterogeneous nucleation that then rapidly converts much of that water into steam. If the change in phase forms a crystalline solid in a liquid matrix, the atoms might then form a Dendrite crystal dendrite . The crystal growth continues in three dimensions, the atoms attaching themselves in certain preferred directions, usually along the axes of a crystal, forming a characteristic tree like structure of a dendrite. Example the critical radius for spheric like dendride in an ideal system can be determined from its Gibbs free energy math G frac 4 3 pi r 3 G v 4 pi r 2 gamma math where math G v math is the Gibbs volume energy and math gamma math is the interfacial energy. The critical radius math r c math is found by setting the derivative of math G math equal to zero math frac dG dr 4 pi r c 2 G v 8 pi r c gamma 0 math yielding math r c frac 2 gamma G v math , where math gamma math is the surface energy, and math G v math is Gibbs energy per volume. See also Nucleation Homogeneous nucleation Heterogeneous nucleation Ostwald ripening References N.H.Fletcher, Size Effect in Heterogeneous Nucleation, J.Chem.Phys.29, 1958, 572. Category Critical phenomena Category Phase transitions Physics stub ... more details
italictitle Taxobox name Panaphelix asteliana image image caption regnum Animal ia phylum Arthropod a classis Insect a ordo Lepidoptera zoodivision Ditrysia zoosectio Cossina familia Tortricidae genus Panaphelix species P. asteliana binomial Panaphelix asteliana binomial authority Swezey, 1932 synonyms Panaphelix asteliana is a moth of the Tortricidae family. It is endemic to Oahu . The larvae feed on Astelia veratroides . The larva is greenish with some fuscous marks on the head and the cervical shield. It feeds beneath a web on apical parts of the leaf of the host plant. The leaf is partially eaten on a transverse line on the lower side. The apical portion then bends down and this is the part on which the larva feeds, eating off the under surface and leaving the extreme apical portion rolled and spun together for a retreat which eventually becomes filled with frass . The pupa is brown and about 15 mm long. External links https scholarspace.manoa.hawaii.edu handle 10125 7338 Insects of Hawaii. Volume 9, Microlepidoptera commons wikispecies Category Archipini Category Endemic moths of Hawaii Archipini stub vi Panaphelix asteliana ... more details
File Laelia superbiens RHS.jpeg thumb 300px Laelia superbiens , a sympodial orchid. Sympodial means with conjoined feet , and in biology is often used to refer to the outward morphology biology morphology or mode of growth of organism s. In botany Plants with sympodial growth have a specialized lateral growth pattern in which the apical meristem is terminated. The apical meristem can either be consumed to make an inflorescence or other determinate structure, or it can be aborted. Growth is continued by a lateral meristem, which repeats the process. The result is that the stem, which may appear to be continuous, is in fact derived from multiple meristems, rather than a monopodial plant whose stems derive from one meristem only. ref Simpson, M. G. 2006. Plant Systematics. Elsevier Academic Press. Pg. 355. ref An example is the Orchidaceae orchid Laelia see illustration . The apical meristem of the rhizome forms an ascendent swollen stem called a pseudobulb , and the apical meristem is consumed in a terminal inflorescence. Continued growth occurs in the rhizome, where a lateral meristem takes over to form another pseudobulb and repeat the process. This process is evident in the jointed appearance of the rhizome, where each segment is the product of an individual meristem, but the sympodial nature of a stem is not always clearly visible. References Reflist See also Monopodial Category Orchids Category plant morphology da Sympodial es Ramificaci n simpodial fr Sympodial it Simpodiale pl Rozga zienia typu sympodialnego pt Crescimento simpodial fi Haarajatkoinen haarautuminen ... more details
Unreferenced stub auto yes date December 2009 Infiltration analgesia is deposition of an analgesic medication drug close to the apex of a tooth so that it can diffuse to reach the nerve entering the apical foramina . See also Regional analgesia Local analgesia Anesthesia DEFAULTSORT Infiltration Analgesia Category Analgesics Category Anesthesia Treatment stub ... more details
Commonly called branch . It develops from axillary bud s on the stem s surface. A lateral shoot is a part of a plant s shoot system. See also Apical dominance Campbell, Neil A. 2010 Biology Eighth Edition Pearson pg 740 Category Plant morphology botany stub ... more details
italic title Taxobox name Argyresthia austerella image Argyresthia austerella.JPG image caption Wing image2 regnum Animal ia phylum Arthropod a classis Insect a ordo Lepidoptera familia Yponomeutidae subfamalia Argyresthiinae genus Argyresthia species A. austerella binomial Argyresthia austerella binomial authority Zeller, 1873 ref http mothphotographersgroup.msstate.edu species.php?hodges 2441 mothphotographersgroup ref synonyms Argyresthia austerella is a moth of the Yponomeutidae family. It is found in North America , including Florida , Texas , Oklahoma , Ohio , Kentucky , Illinois , Missouri , New Hampshire and Maryland . The wingspan is 8 9 mm. The forewings are white, with striking dark brown markings. The entire costal edge and apical part of the wing is mottled with dark brown, in which the ground colour appears as small dots and dashes, especially in the apical part. Before the middle of the costa, a dark brown, nearly black, inwardly oblique streak is found, reaching to the fold. From just beyond the middle of the costa runs a broader blackish brown fascia parallel with the first costal streak, but reaching to the costal edge. At apical third is a third dark streak parallel to the other two, but generally more or less diffused into the dark apical part of the wing. ref http si pddr.si.edu dspace bitstream 10088 13945 1 USNMP 32 1506 1907.pdf Revision Of The American Moths Of The Genus Argyresthia ref References Reflist Category Animals described in 1873 Category Argyresthia Yponomeutidae stub ... more details
in Dendrite International, Inc. v. Doe No. 3 http www.citizen.org documents dendrite.pdf , a 2000 ... have clarified the limit or expanded the application of Dendrite s Dendrite International, Inc. v ... display.jsp?vnu content id 1003566695 see Dendrite Effect in this article below . At this time it is unclear ... to Brennan, and also for failure to follow procedures set forth in Dendrite. http www.citizen.org documents ... focus of the Public Citizen Litigation Group and, in the Dendrite case, it had jointly filed an amicus ... of the American Civil Liberties Union . Dendrite Effect In Dendrite International, Inc. v. Doe No. 3 Dendrite http www.citizen.org documents dendrite.pdf , the decision stated that certain standards ... www.citizen.org documents dendrite.pdf Dendrite International v. Does http www.cfp2002.org proceedings proceedings doe amicus.pdf Public Citizen and NJ ACLU amicus curiae brief re Dendrite http www.law.com ... more details
apical ring, tarsal segments one, two and four with white apical rings, tarsal segment five entirely ... apical ring, tarsal segment one with basal and apical white rings, segments two and three with indistinct whitish apical rings, segments four and five entirely whitish, spurs white dorsally, brown ... with a broad prolongation towards apex and with a narrow apical protrusion to the middle of the apical ... streak, inwardly edged greyish brown, from outer costal spot, a shining white apical line from the apical protrusion to the apical cilia, cilia greyish brown at apex, ochreous brown towards dorsum. Hindwing ... fascia and the white apical line indistinctly visible, hindwing shining grey. Abdomen dorsally ... more details
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